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#![warn(unused_attributes)]
// Tests that placing the #[no_mangle] attribute on a foreign fn or static emits
// a specialized warning.
// The previous warning only talks about a "function or static" but foreign fns/statics
// are also not allowed to have #[no_mangle]
// build-pass
extern "C" {
#[no_mangle]
//~^ WARNING `#[no_mangle]` has no effect on a foreign static
//~^^ WARNING this was previously accepted by the compiler
pub static FOO: u8;
#[no_mangle]
//~^ WARNING `#[no_mangle]` has no effect on a foreign function
//~^^ WARNING this was previously accepted by the compiler
pub fn bar();
}
fn no_new_warn() {
// Should emit the generic "not a function or static" warning
#[no_mangle]
//~^ WARNING attribute should be applied to a free function, impl method or static
//~^^ WARNING this was previously accepted by the compiler
let x = 0_u8;
}
fn main() {}
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